Alternatively, use wget in the terminal:

cd ~/Downloads wget https://www.microsip.org/download/MicroSIP.exe Navigate to the directory containing MicroSIP.exe and run:

[Desktop Entry] Name=MicroSIP Comment=SIP Softphone Exec=wine /home/yourusername/Downloads/MicroSIP.exe Icon=/home/yourusername/Downloads/microsip-icon.png Terminal=false Type=Application Categories=Network;Telephony; StartupNotify=true Save ( Ctrl+O , then Ctrl+X ). Then make it executable:

MicroSIP is a lightweight, open-source SIP softphone known for its efficiency, low resource usage, and crystal-clear audio quality. It’s a favorite among VoIP users who need a no-frills, fast, and reliable client for connecting to SIP providers like Asterisk, FreeSWITCH, 3CX, or any standard VoIP service.

# Ubuntu/Debian sudo apt install linphone sudo dnf install linphone

However, there’s a catch: . The official website provides only .exe installers. So, how do you run it on Linux?

cd ~/Downloads wine MicroSIP.exe On first launch, Wine will create a virtual Windows environment ( ~/.wine ). This may take a minute.